/*********************************************************************
 * Copyright (C) 2002 Andrew Khan
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.biff;

/**
 * Represents a built in, rather than a user defined, style.
 * This class is used by the FormattingRecords class when writing out the hard*
 * coded styles
 */
class BuiltInStyle extends WritableRecordData {
    /**
     * The XF index of this style
     */
    private int xfIndex;
    /**
     * The reference number of this style
     */
    private int styleNumber;

    /**
     * Constructor
     *
     * @param xfind the xf index of this style
     * @param sn the style number of this style
     */
    public BuiltInStyle(int xfind, int sn) {
        super(Type.STYLE);

        xfIndex = xfind;
        styleNumber = sn;
    }

    /**
     * Abstract method implementation to get the raw byte data ready to write out
     *
     * @return The byte data
     */
    public byte[] getData() {
        byte[] data = new byte[4];

        IntegerHelper.getTwoBytes(xfIndex, data, 0);

        // Set the built in bit
        data[1] |= 0x80;

        data[2] = (byte) styleNumber;

        // Set the outline level
        data[3] = (byte) 0xff;

        return data;
    }
}
